Electrical conductivity of thermoresponsive shape-memory polymer with embedded micron sized Ni powder chains

J. S. Leng; X. Lan; Y. J. Liu; S. Y. Du; W. M. Huang; N. Liu; S. J. Phee; Q. Yuan

doi:10.1063/1.2829388

Electrical conductivity of thermoresponsive shape-memory polymer with embedded micron sized Ni powder chains

J. S. Leng^*, X. Lan, Y. J. Liu, S. Y. Du, W. M. Huang, N. Liu, S. J. Phee, Q. Yuan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

226 Citations (Scopus)

Abstract

The electrical resistivity of a thermoresponsive polyurethane shape-memory polymer (SMP) filled with micron sized Ni powders is investigated in this letter. We show that, by forming conductive Ni chains under a weak static magnetic field (0.03 T), the electrical conductivity of the SMP composite in the chain direction can be improved significantly, which makes it more suitable for Joule heat induced shape recovery. In addition, Ni chains reinforce the SMP significantly but their influence on the glass transition temperature is about the same as that of the randomly distributed Ni powders.

Original language	English
Article number	014104
Journal	Applied Physics Letters
Volume	92
Issue number	1
DOIs	https://doi.org/10.1063/1.2829388
Publication status	Published - 2008
Externally published	Yes

ASJC Scopus Subject Areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2829388

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title = "Electrical conductivity of thermoresponsive shape-memory polymer with embedded micron sized Ni powder chains",

abstract = "The electrical resistivity of a thermoresponsive polyurethane shape-memory polymer (SMP) filled with micron sized Ni powders is investigated in this letter. We show that, by forming conductive Ni chains under a weak static magnetic field (0.03 T), the electrical conductivity of the SMP composite in the chain direction can be improved significantly, which makes it more suitable for Joule heat induced shape recovery. In addition, Ni chains reinforce the SMP significantly but their influence on the glass transition temperature is about the same as that of the randomly distributed Ni powders.",

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AU - Leng, J. S.

AU - Lan, X.

AU - Liu, Y. J.

AU - Du, S. Y.

AU - Huang, W. M.

AU - Liu, N.

AU - Phee, S. J.

AU - Yuan, Q.

PY - 2008

Y1 - 2008

N2 - The electrical resistivity of a thermoresponsive polyurethane shape-memory polymer (SMP) filled with micron sized Ni powders is investigated in this letter. We show that, by forming conductive Ni chains under a weak static magnetic field (0.03 T), the electrical conductivity of the SMP composite in the chain direction can be improved significantly, which makes it more suitable for Joule heat induced shape recovery. In addition, Ni chains reinforce the SMP significantly but their influence on the glass transition temperature is about the same as that of the randomly distributed Ni powders.

AB - The electrical resistivity of a thermoresponsive polyurethane shape-memory polymer (SMP) filled with micron sized Ni powders is investigated in this letter. We show that, by forming conductive Ni chains under a weak static magnetic field (0.03 T), the electrical conductivity of the SMP composite in the chain direction can be improved significantly, which makes it more suitable for Joule heat induced shape recovery. In addition, Ni chains reinforce the SMP significantly but their influence on the glass transition temperature is about the same as that of the randomly distributed Ni powders.

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Electrical conductivity of thermoresponsive shape-memory polymer with embedded micron sized Ni powder chains

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ASJC Scopus Subject Areas

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